Transparent FEP tubing allows visual observation of liquid and bubbles. Visibility depends on the tube wall, ID and liquid colour; check a sample with the actual liquid.
FEP Compression-Ring Tubing Assembly
FOREACH FEP compression-ring tubing assemblies combine transparent FEP tubing, matching fittings, compression rings and sealing ferrules for reagent, cleaning-fluid and internal instrument connections in in-vitro diagnostic (IVD) and automated analytical instruments. Available tubing IDs span 0.3–2.0 mm, with ODs of 1.6, 2.0, 2.5, 3.0 and 3.2 mm in specified pairs. Tube length and A/B end connections can be specified.
The compression ring and sealing ferrule secure and seal the tube end. The 6-40 UNF configuration uses a PEEK fitting for 1.6 mm OD tubing; HSF6 provides M6×1 and 1/4-28 UNF threads with tube OD selected by model. SUS and PEEK compression ring and sealing ferrule components are matched by model. Coils, protective sleeves, stop tubes and identification can be specified. Equipment development, samples to drawing and batch assembly are supported. Confirm working pressure and temperature for the specific dimensions, ports and complete assembly.
FOREACH holds ISO 9001 and ISO 13485 quality management system certifications.
Typical Applications:
Reagent line connections, Cleaning-fluid line connections, Compression-ring end connections, Internal instrument fluid-path assembly
| Tubing material and appearance | Transparent FEP |
|---|---|
| Connection structure | Compression ring and sealing ferrule |
| Matching fittings | HSF6 fittings, 6-40 UNF miniature fittings |
| Fitting material | PPS, PEEK; selected by series |
| Standard threads | M6×1, 1/4-28 UNF (HSF6 configuration) |
| Compression-ring kit | SUS and PEEK components matched to the kit model |
| Finished length | Custom to drawing, with specified length and tolerance |
| A/B ends | Fitting material, thread and connection type can be specified separately |
| Optional configurations | Coils, abrasion protection sleeves, stop tubes, heat-shrink labels |
Tube Size Combinations
| Tube OD (mm) | Matching Tube ID (mm) |
|---|---|
| 1.6 | 0.3 / 0.5 / 0.8 / 1.0 |
| 2.0 | 1.0 |
| 2.5 | 1.5 |
| 3.0 | 2.0 |
| 3.2 | 1.6 |
These are available tubing sizes. Confirm end dimensions and mating ports against the assembly drawing.
Match fitting material, structure and thread to the corresponding model.
Miniature option: 6-40 UNF, PEEK fitting, 1.6 mm tube OD. Confirm the complete end configuration against the selected model.
Working pressure and temperature must be confirmed for the specific assembly configuration.
Matching fittings and 2D drawings
The table lists fitting series, threads and body materials for 1.6 mm tube OD as examples. Select the drawing by material and full model number; confirm matching parts for other ODs during customization.
| Fitting series | Thread size | Nut material | Fitting drawing |
|---|---|---|---|
| HFL6 | 6-40 UNF | PEEK | |
| HSF | 1/4-28 UNF | PEEK | |
| HSF6 | M6×1 | PPS | |
| HSF6 | 1/4-28 UNF | PEEK, PPS |
Frequently Asked Questions
Submit your requirements
Prepare an assembly drawing, port drawing or BOM, together with sample quantity, batch requirements and acceptance criteria.